Httpd RHEL Compilation

External

• http://httpd.apache.org/docs/current/install.html

Internal

• httpd Installation

Overview

This is the Apache httpd compilation/installation procedure. It implies that httpd is compiled from source. If you plan to install httpd with yum, go directly to yum installation.

Procedure

Download

Download from http://httpd.apache.org/download.cgi and optionally place in the local archive directory.

wget http://mirror.cogentco.com/pub/apache//httpd/httpd-2.4.25.tar.gz

Older releases may not be on mirrors, but they can be downloaded directly from the apache web site: http://archive.apache.org/dist/httpd.

Extract

The sources can be extracted as a non-root user.

cd src
gunzip < ../archive/httpd-2.2.17.tar.gz | tar xfv -  

Configure Compilation

• http://httpd.apache.org/docs/current/programs/configure.html

Compilation can be configured as a non-root user.

cd httpd-2.2.17
./configure \
  --prefix /opt/httpd-2.2.17[-worker] \
  --enable-so \
  --enable-expires=shared \
  --with-included-apr

!Notes:

* It is a good idea to compile Template:Httpd with shared module option enabled (Template:--enable-so --enable-expires=shared).
* Template:Configure may complain about not finding APR. I worked around this by using Template:--with-included-apr in configure configuration.
* different module configuration requirements:

|worker MPM| see [Woker MPM Compilation|HttpdWorkerMPM#Compilation]
|mod_proxy| see [Mod_proxy#Compilation]
|mod_proxy_ajp| see [Mod_proxy_ajp#Compilation]
|mod_rewrite | see [Mod_clusterInstallation]
|mod_expires|

* If you need SSL, compile the latest OpenSSL (see [OpenSSL#Compilation]) and then 

{{{

     ...
     --enable-ssl 
     --with-ssl=/data/openssl-1.0.2/
     ...
}}}

Also, important, if you use SSL, when running httpd, you need to set LD_LIBRARY_PATH to point to the OpenSSL lib directory:

{{{
LD_LIBRARY_PATH="/data/openssl-1.0.2/lib:${LD_LIBRARY_PATH}"
export LD_LIBRARY_PATH
}}}


!Cleaning configuration

The only option I discovered so far is to completely remove the source tree. I am sure others exist ... if I find them, add them here.


!Nike configuration

{{{

Version 2.2.15

./configure --prefix=/cust/soe/opt/apache/2.2.15_without_mod_proxy 
            --enable-logio 
            --disable-proxy 
            --enable-rewrite 
            --enable-ssl 
            --enable-vhost-alias 
            --enable-headers 
            --enable-dav 
            --enable-dav-fs 
            --enable-modules=ssl 
            --with-ssl=/cust/soe/opt/openssl/1.0.0/ 
            --with-included-apr 
            --enable-dav-lock 
            --enable-deflate 
            --enable-so 
            --with-mpm=worker 

We disable mod_proxy so we can use the version included in mod_cluster.  
}}}


!SMC Configuration

They use mod_proxy

{{{
#!/bin/bash

$(dirname $0)/configure \
 --prefix /data/httpd-2.2.29-worker-mpm \
 --enable-so \
 --with-included-apr \
 --enable-expires=shared \
 --with-mpm=worker \
 --enable-proxy \
 --enable-proxy-connect \
 --enable-proxy-http \
 --enable-proxy-ajp \
 --enable-proxy-balancer \
 --disable-cgi \
 --enable-ssl \
 --with-ssl=/data/openssl-1.0.2
}}}

!mod_cluster Recommended Configuration

1. Apply [mod_proxy_ajp.path|http://anonsvn.jboss.org/repos/mod_cluster/trunk/native/mod_proxy_cluster/mod_proxy_ajp.patch] (optional).

2. Configure:

{{{
./configure  --prefix=apache_installation_directory 
             --with-mpm=worker 
             --enable-mods-shared=most 
             --enable-maintainer-mode 
             --with-expat=builtin 
             --enable-ssl 
             --enable-proxy 
             --enable-proxy-http 
             --enable-proxy-ajp 
             --disable-proxy-balancer
             --enable-so 
}}}


!!Configuration Parameters

|[httpd Compilation Configuration Parameters|httpdConfigurationCompilationParameters]

yum Installation